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Dynamics of galactic nuclei: Mass segregation and collisions

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arxiv 0710.0490 v1 pith:2D4AGEW4 submitted 2007-10-02 astro-ph

Dynamics of galactic nuclei: Mass segregation and collisions

Marc Freitag (IoA , Cambridge) , James E. Dale (Lund Observatory) , Ross P. Church (Monash University) , Melvyn B. Davies (Lund Observatory) This is my paper
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keywords collisionsmassblackcentregalacticholesnucleisegregation
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Massive black holes (MBHs) with a mass below ~ 1e7 Msun are likely to reside at the centre of dense stellar nuclei shaped by 2-body relaxation, close interactions with the MBH and direct collisions. In this contribution, we stress the role of mass segregation of stellar-mass black holes into the innermost tenths of a parsec and point to the importance of hydrodynamical collisions between stars. At the Galactic centre, collisions must affect giant stars and some of the S-stars.

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